... synovium; 1, synovial membrane hypertrophy and cell infiltrates; 2, pannus and cartilage erosions, 3, majorerosions of cartilage and subchondral bone; and 4, loss of joint integrity and ankylosis. ... characterized by infiltration of leukocytes and erosion of cartilage and bone. Recent studieshave indicated that many of the cells involved with RA, namelymononuclear leukocytes [29], articular ... inflam-mation and redness; 2, severe erythema and swelling affecting the entire paw, with inhibition of use; and 3, deformed paw orjoint, with ankylosis, joint rigidity, and loss of function. The totalscore...